Reset to the factory settings Phone DNS. How to reset the tablet to the factory settings

Sooner or later, many users of the Android tablets arise a situation when the tablet needs to be cleaned and restored to the factory state. To do this, there may be many reasons, but mostly either the unstable operation of the device, or the "cleaning" of data before selling. There is also a situation where the tablet ceases to turn on or hangs when loading, in such cases it is not completely discharge.

First of all, it is worth splitting two concepts: Hard Reset and Soft Reset.

Hard Reset. (Hard reset) - a complete reset of device settings and recovery to the factory state. Such a procedure is akin to reinstalling the operating system. After hard reset, you will lose all of your data, including installed programs, contacts, and media files. However, it is not necessary to confuse Hard Reset with flashing, if you have a "custom" firmware or "Root" installed, then all this will be saved and after full reset.
Before making a hard reset, it is recommended to make backup copies of all necessary data. Simple media files can be elementary to copy to the memory card or computer using the file manager. To save backup copies of games and other applications, it is recommended to use special back-up utilities, which under Android there is a large set today. But keep in mind that in case of emergency full reset, you cannot save any of the above.
Soft Reset. (Soft reset) - Currently, a soft reset is understood to be a banal restart of the device, which can be made either by pressing a special combination of the tablet key or through the menu. Some tablets also have special buttons to reboot on the housing. Before making a complete reset, it is always recommended to try Soft Reset - it is possible to quickly correct the reboot. Most of the modern tablets, the reboot will be carried out by a long pressing of the on / off button.

How to make Hard Reset

Important! Despite the fact that Hard Reset does not delete data from MicroSD cards, before carrying out this procedure, it is still recommended to remove the memory card from the device.

Method number 1. If the tablet is operational, go to the settings, select the "Restore and Reset" item, and click "Reset Phone Settings". Keep in mind that depending on the firmware version, the name and location of the menu items may vary.
Method number 2. If the tablet fails to be loaded into the operating status, you will need to enter the recovery mode (Recovery Mode), and make a complete reset from there. In order to boot into the Rovery Mode, turn off the tablet, then clamp the volume button up (or down, depending on the model) and simultaneously press the power button or the "Home" button (depending on the tablet model). Keep both buttons pressed until the Android logo appears. After loading the recovery mode, in the menu that appears, select the "WIPE DATA / Factory Reset" section. To note, in Recovery mode, the touch screen does not work, and all the menu navigation is performed by the volume swing, and the option button is the on or button "Home" (again, depending on the tablet model). See the article "" more detailed instructions.

DNS S4701 Works under the operating system Android 4.1.. Its productivity is estimated at 0 out of 5 (in its segment). This smartphone - needs additional evaluation. Here are the characteristics of the device, instructions, how to make a reset settings, flash the device and, of course, how to get root rights to DNS

Characteristics

Standard: GSM 900/1800/1900, 3G
Type: Smartphone
Operating system: Android 4.1
Case type: Classic
Case material: plastic
Number of SIM-Cards: 2
Mode of operation of several SIM cards: alternated
Sizes (shXVXT): 65x133x9 mm
Screen Type: Color IPS, Touch
Touch Screen Type: Multitach, Capacitive
Diagonal: 4.5 inch.
Image Size: 720x1280
Automatic screen rotation: yes
Type of melodies: polyphonic, MP3 melodies
Vibrating alert: Yes
Camera: 8 million pix., Built-in flash
Camera Functions: Autofocus
Video recording: yes
Front camera: yes, 1.9 million pixels.
Audio: MP3, FM Radio
Dictaphone: Yes
Headphone jack: 3.5 mm
Interfaces: USB, Wi-Fi, NFC, Bluetooth 3.0
Satellite navigation: GPS
Internet access: WAP, GPRS, EDGE, HSDPA, HSUPA, Email Pop / SMTP, HTML
Processor: Broadcom BC28155, 1200 MHz
Number of processor cores: 2
Video processor: Broadcom VideoCore IV
The volume of the built-in memory: 8 GB
RAM size: 1 GB
Memory Card Support: MicroSD (Transflash)
Additional SMS functions: Text Entering with a dictionary
MMS: Yes
Battery capacity: 1900 mAh
Sensors: illumination, gyroscope
Search book: yes
Exchange between SIM card and internal memory: yes
Organizer: Alarm Clock, Calculator, Task Scheduler

Firmware for DNS S4701

[Official firmware] - (SmartFon-S4701-BCR1-BRCM28155-R464.zip)
Remove via SP FlashTool.

If the download does not pass completely and the FXXX error is displayed (for example, F2101), which means most likely, the compilation has passed with errors or not completely downloaded the firmware file. To repeat the compilation, you will have to delete the previously downloaded files and re-download fresh.

If a custom or official firmware for DNS has not yet been added here, then create a topic on the forum, in the section, our specialists will promptly and free help. With backup and manuals. Just do not forget to write and reviews your smartphone - it is extremely important. This page will also appear firmware on DNS S4701. Note that this model DNS requires an individual ROM file, so you should not try firmware files from other devices.

What are the Castom Firmware (Firmware)?

CM - Cyanogenmod.
Lineageos.
Paranoid Android
Omnirom
Temasek's.

AICP (Android Ice Cold Project)
RR (Resurrection Remix)
MK (Mokee)
Flymeos.
Bliss.
crdroid
Illusion Roms.
Pacman ROM.

Problems and disadvantages of smartphone from DNS and how to fix them?

If S4701 does not turn on, for example, you see a white screen, hanging on a screensaver or only flashing alert indicator (perhaps after charging).
If it is hung when updating / hung on when you turn on (you need a flashing, 100%)
Not charging (usually, problems with iron)
Does not see the SIM card (SIM)
Camera does not work (for greater extent, hardware problems)
Sensor does not work (depends on the situation)

For all these issues, please contact (you just need to create a topic), the specialists will help free.

Hard Reset for DNS S4701

Instructions, how to make Hard Reset on DNS S4701 (resetting). We recommend to get acquainted with the visual guide, which is called on Android. .

Codes for resetting settings (open the dialer and enter them).

*2767*3855#
*#*#7780#*#*
*#*#7378423#*#*

Hard Reset via Recovery

Turn off the device-\u003e Go to Recovery
"WIPE DATA / FACTORY RESET"
"Yes - Delete All User Data" -\u003e "Reboot System"

How to go to Recovery?

hold and hold the Vol (-) [volume down], or VOL (+) [Volume Up] and the power button (POWER)
the menu will appear with Android. Everything, you in Recovery!

Reset settings on DNS S4701 can be done in a completely simple way:

Settings-\u003e Recovery and Reset
Reset settings (at the bottom)

How to reset the graphic key

How to reset the graphic key if you forgot it, and now you cannot unlock your DNS smartphone. On the S4701 model, the key or PIN code can be removed in several ways. You can remove the lock and via resetting the settings, the blocking code will be deleted and disabled.

Reset graph. Locks -
Password reset -

There was a confusion with you, and you have introduced an incorrect number of times the graph key on the DNS AirTab E71 tablet, what to do in the current situation? Do you really need to run to the service center to a specialist or you can use simple recommendations and return your favorite gadget to life at home? Below we give a few tips, how can you remove the graphic key and return the factory settings to the DNS AirTab E71 tablet:

You can remove the graphic key by connecting your gadget to the computer and go through the "Start" on Windows XP in the CMD menu. Once in this menu, you will need to register in it in two penultimate points of the 'Lock_Pattern_autolock' and 'Lockscreen.lockedoutperManently'. Then it is enough to restart the device on which all settings will already be reset.

It is necessary to turn off the tablet and for the full warranty, pull out the SIM card and the memory card (if any). After that, click simultaneously on the volume and inclusion buttons. In the displayed menu, you will need to select the settings string using the Volume Adjustment buttons, and then Format System. To restart the tablet, select the RESET Android item. Ready! But consider that the settings have returned to the factory, and the data from the memory card was removed. If you failed to perform the described operation from the first time, try carefully to do everything again.

If the two above-mentioned graphics key removal methods did not work, find the RESET word on the back cover of the tablet. There will be a small hole where you need to penetrate the thin object and press the inner button. As a result, the tablet must reboot, and the settings on it will be reset.

If none of the described methods helped you in solving the problem of removing the graphics key on the DNS AirTab E71, then it is necessary to perform it to flashing it.